helm: don't specify default topology domainlabels in rbd chart

Remove the bad default, add commented-out standard labels as a suggestion.

Fixes: #4775
Signed-off-by: Mark Glines <mark@glines.org>

charts/ceph-csi-rbd/values.yaml

@@ -304,9 +304,9 @@ topology:
   # for CSI nodeplugins to advertise their domains
   # NOTE: the value here serves as an example and needs to be
   # updated with node labels that define domains of interest
-  domainLabels:
-    - failure-domain/region
-    - failure-domain/zone
+  # domainLabels:
+  # - topology.kubernetes.io/region
+  # - topology.kubernetes.io/zone
 
 # readAffinity:
 # Enable read affinity for RBD volumes. Recommended to